<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        .box{
           width: 100%;
           height: 600px;
           background: rgb(204,206,72);
           margin-top: 50px;
           /* overflow: hidden; */
           /* float: left; */
           /* position: absolute; */
           display: inline-block;

        }
        .wrap{
            width: 100%;
           height: 300px;
           background: rgb(18, 202, 116);
            margin-top: 150px; 
        }
    </style>
</head>
<body>
    <div class="box">
        <div class="wrap">
            
        </div>
    </div>
</body>
</html>